High

Improper Handling of Exceptional Conditions and Improper Input Validation in Reactor Netty

  • Disclosed: 10.02.2022
  • Updated: 11.10.2026 11:21

Reactor Netty HttpServer, versions 0.9.3 and 0.9.4, is exposed to a URISyntaxException that causes the connection to be closed prematurely instead of producing a 400 response.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) io.projectreactor.netty:reactor-netty-http >= 0.9.3, < 0.9.5 0.9.5

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-20, CWE-755
Platform
Java / Kotlin (Maven)
Package
io.projectreactor.netty:reactor-netty-http
Disclosed
10.02.2022
Updated
11.10.2026 11:21

Sources and licenses

OSV / GitHub Advisory Database - GHSA-hp5x-rqf7-43vf - CC BY 4.0

Vulnerability history: io.projectreactor.netty:reactor-netty-http

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
5
First → latest
02.2022 07.2025
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 2
  • Medium 3

Disclosures per year

  1. 2022: 3
  2. 2023: 1
  3. 2024: 0
  4. 2025: 1
  5. 2026: 0
  1. Medium · 6.1 CVE-2025-22227 >= 1.3.0-M1, < 1.3.0-M5, < 1.2.8 1.3.0-M5, 1.2.8
  2. Medium · 4.3 CVE-2022-31684 >= 1.0.11, < 1.0.24 1.0.24
  3. Improper Handling of Exceptional Conditions and Improper Input Validation in Reactor Netty this entry
    High · 7.5 CVE-2020-5403 >= 0.9.3, < 0.9.5 0.9.5
  4. Medium · 5.9 CVE-2020-5404 >= 0.9.0, < 0.9.5, >= 0.8.0, < 0.8.16 0.9.5, 0.8.16

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